Home / 99,931.93-137,901.97-54,611.44

Finding the Fourth Proportional to 99,931.93, 137,901.97 and 54,611.44

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Solution

The fourth proportional to 99,931.93, 137,901.97 and 54,611.44 is: 75,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,931.93 : 137,901.97 = 54,611.44 : x
  2. Step 2: Convert to fraction form
    99,931.93/137,901.97 = 54,611.44/x
  3. Step 3: Cross multiply
    99,931.93x = 137,901.97 × 54,611.44
  4. Step 4: Simplify right side
    99,931.93x = 7,531,025,118.30
  5. Step 5: Solve for x
    x = 7,531,025,118.30/99,931.93
  6. Step 6: Final answer
    x = 75,361.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.